Abstract: A circular knitting machine for knitted items, comprising: a supporting structure; a needle-holding cylinder selectively turnable and provided with a plurality of cylinder needles; and a dial assembly. The dial assembly includes a supporting ring integral with the supporting structure; a needle-holding plate turnably mounted to the supporting ring; a plurality of plate needles; a plurality of control cams which interact with the plate needles to transmit to them a radial movement inside the respective sliding seat, wherein the control cams globally form a cam profile. The dial assembly includes a stitch cam placed movably on the supporting ring and interacting with the plate needles in a given angular sector during the rotation of the needle-holding plate, so as to transmit to the plate needles a motion of return for executing stitch formation. The stitch cam is selectively movable with respect to the cam profile.

Abstract: A circular textile knitting machine includes a drive chain for each needle inserted in a respective longitudinal groove, located below a respective needle and operatively interposed between the respective needle and actuating cams. The drive chain includes a sub-needle arranged below the needle and engaged with the needle to be axially moved in the respective longitudinal groove together with the needle. The sub-needle includes a movable butt radially movable between an operating position, in which it is extracted to be engaged with respective first paths defined by first actuating cams and cause activation of the needle, and a non-operating position, in which it is retracted to not be engaged with the first paths.

Abstract: A turning device for sewing or grafting stations for automated closing of the tubular knitted items at a first end thereof includes a lower portion and an upper portion, arranged below and above an intermediate area on which can be positioned supporting means for the tubular item to be turned, hanging at its first axial end, and at least one tubular body to be inserted from below to above, with the upper axial end thereof, through the axial end of the item hanging from the supporting means for turning the tubular item. The device includes moving mechanisms for positioning the lower portion between a first operating position, in which it is vertically aligned with the upper portion, and a second operating position, in which it is displaced laterally with respect to the upper portion; a manipulating mechanism, movable between a non-operating position, in which it does not interact with the tubular item, and an operating position, in which it is placed above the tubular item.

Abstract: A circular knitting machine for knitted or hosiery items includes a supporting structure; a needle-holding cylinder selectively turnable around an axis of rotation of the knitting machine and provided with a plurality of cylinder needles; and a dial assembly arranged above the needle-holding cylinder. The dial assembly includes a supporting ring integral with the supporting structure; a needle-holding plate turnably mounted to the supporting ring and turnable around the axis of rotation; a plurality of plate needles; and a plurality of cams controlling the plate needles, which interact with the plate needles so as to transmit to them a radial movement inside the respective sliding seat based on a given law of motion, wherein the control cams globally form a cam profile defining the law of motion.

Abstract: A turning device for sewing or grafting stations for automated closing of the tubular knitted items at a first end thereof includes a lower portion and an upper portion, arranged below and above an intermediate area on which can be positioned supporting means for the tubular item to be turned, hanging at its first axial end, and at least one tubular body to be inserted from below to above, with the upper axial end thereof, through the axial end of the item hanging from the supporting means for turning the tubular item. The device includes moving mechanisms for positioning the lower portion between a first operating position, in which it is vertically aligned with the upper portion, and a second operating position, in which it is displaced laterally with respect to the upper portion; a manipulating mechanism, movable between a non-operating position, in which it does not interact with the tubular item, and an operating position, in which it is placed above the tubular item.

Abstract: A flat part for a knitting machine includes a main flat body and a pair of springs protruding on opposed sides of the main flat body and resting against opposed surfaces of a respective groove in the needle-holding cylinder of a knitting machine. Each spring, when the flat part is inserted into the groove, pushes against the respective surface of the groove, so as to make it easier for the flat part to oscillate in the groove and/or to stabilize the positioning of the flat part in the groove.

Abstract: A circular textile knitting machine includes a drive chain for each needle inserted in a respective longitudinal groove, located below a respective needle and operatively interposed between the respective needle and actuating cams. The drive chain includes a sub-needle arranged below the needle and engaged with the needle to be axially moved in the respective longitudinal groove together with the needle. The sub-needle includes a movable butt radially movable between an operating position, in which it is extracted to be engaged with respective first paths defined by first actuating cams and cause activation of the needle, and a non-operating position, in which it is retracted to not be engaged with the first paths.